diff --git a/python/core/symbology-ng/qgsvectorcolorrampv2.sip b/python/core/symbology-ng/qgsvectorcolorrampv2.sip
index 34f6e099744..9fed9622a00 100644
--- a/python/core/symbology-ng/qgsvectorcolorrampv2.sip
+++ b/python/core/symbology-ng/qgsvectorcolorrampv2.sip
@@ -26,7 +26,7 @@ class QgsVectorColorRampV2
 
 };
 
-class QgsVectorGradientColorRampV2 : QgsVectorColorRampV2
+class QgsVectorGradientColorRampV2 : public QgsVectorColorRampV2
 {
 %TypeHeaderCode
 #include <qgsvectorcolorrampv2.h>